keyword
MENU ▼
Read by QxMD icon Read
search

Bayer

keyword
https://www.readbyqxmd.com/read/28106259/selection-on-parental-performance-opposes-selection-for-larger-body-mass-in-a-wild-population-of-blue-tits
#1
Caroline E Thomson, Florian Bayer, Nicholas Crouch, Samantha Farrell, Elizabeth Heap, Elizabeth Mittell, Mar Zurita-Cassinello, Jarrod D Hadfield
There is abundant evidence in many taxa for positive directional selection on body size, and yet little evidence for microevolutionary change. In many species, variation in body size is partly determined by the actions of parents, so a proposed explanation for stasis is the presence of a negative genetic correlation between direct and parental effects. Consequently, selecting genes for increased body size would result in a correlated decline in parental effects, reducing body size in the following generation...
January 20, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28102396/zinc-sparks-induce-physiochemical-changes-in-the-egg-zona-pellucida-that-prevent-polyspermy
#2
Emily L Que, Francesca E Duncan, Amanda R Bayer, Steven J Philips, Eric W Roth, Reiner Bleher, Sophie C Gleber, Stefan Vogt, Teresa K Woodruff, Thomas V O'Halloran
During fertilization or chemically-induced egg activation, the mouse egg releases billions of zinc atoms in brief bursts known as 'zinc sparks.' The zona pellucida (ZP), a glycoprotein matrix surrounding the egg, is the first structure zinc ions encounter as they diffuse away from the plasma membrane. Following fertilization, the ZP undergoes changes described as 'hardening', which prevent multiple sperm from fertilizing the egg and thereby establish a block to polyspermy. A major event in zona hardening is cleavage of ZP2 proteins by ovastacin; however, the overall physiochemical changes contributing to zona hardening are not well understood...
January 19, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28101718/poisoning-through-pediatric-skin-cases-from-the-literature
#3
REVIEW
Ahuva Cices, Stephanie Bayers, Anna Elisa Verzì, Lawrence A Schachner, Dennis P West, Giuseppe Micali
Poisoning through pediatric skin leading to acute systemic symptoms is a relatively uncommonly reported phenomenon. Systemic toxicity through the skin typically occurs by direct contact between therapeutic or non-therapeutic topical agents and the skin. Though uncommon, poisoning through pediatric skin can have significant consequences and must be recognized so the offending agent may be discontinued and appropriate treatment initiated. We performed a literature search for all article types between 1950 and April 2016 to provide a single source of detectable cases of acute toxicity in pediatric patients due to percutaneous exposure...
January 18, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28100830/neural-bases-of-recommendations-differ-according-to-social-network-structure
#4
Matthew Brook O'Donnell, Joseph B Bayer, Christopher N Cascio, Emily B Falk
Ideas spread across social networks, but not everyone is equally positioned to be a successful recommender. Do individuals with more opportunities to connect otherwise unconnected others-high information brokers-use their brains differently than low information brokers when making recommendations? We test the hypothesis that those with more opportunities for information brokerage may use brain systems implicated in considering the thoughts, perspectives, and mental states of others (i.e. 'mentalizing') more when spreading ideas...
January 18, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28080914/tricaine-methanesulfonate-ms-222-sedation-and-anesthesia-in-the-purple-spined-sea-urchin-arbacia-punctulata
#5
Jeffrey R Applegate, Daniel S Dombrowski, Larry Shane Christian, Meredith P Bayer, Craig A Harms, Gregory A Lewbart
The purple-spined sea urchin ( Arbacia punctulata ) is commonly found in shallow waters of the western Atlantic Ocean from the New England area of the United States to the Caribbean. Sea urchins play a major role in ocean ecology, echinoculture, and biomedical research. Additionally, sea urchins are commonly displayed in public aquaria. Baseline parameters were developed in unanesthetized urchins for righting reflex (time to regain oral recumbency) and spine response time to tactile stimulus. Tricaine methanesulfonate (MS-222) was used to sedate and anesthetize purple-spined sea urchins and assess sedation and anesthetic parameters, including adhesion to and release from a vertical surface, times to loss of response to tactile stimulus and recovery of righting reflex, and qualitative observations of induction of spawning and position of spines and pseudopodia...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28077581/redeploying-%C3%AE-lactams-against-staphylococcus-aureus-repurposing-with-a-purpose
#6
EDITORIAL
Arnold S Bayer, Yan Q Xiong
No abstract text is available yet for this article.
January 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28070582/grain-boundary-mediated-nanopores-in-molybdenum-disulfide-grown-by-chemical-vapor-deposition
#7
Kenan Elibol, Toma Susi, Maria O Brien, Bernhard C Bayer, Timothy J Pennycook, Niall McEvoy, Georg S Duesberg, Jannik C Meyer, Jani Kotakoski
Molybdenum disulfide (MoS2) is a particularly interesting member of the family of two-dimensional (2D) materials due to its semiconducting and tunable electronic properties. Currently, the most reliable method for obtaining high-quality industrial scale amounts of 2D materials is chemical vapor deposition (CVD), which results in polycrystalline samples. As grain boundaries (GBs) are intrinsic defect lines within CVD-grown 2D materials, their atomic structure is of paramount importance. Here, through atomic-scale analysis of micrometer-long GBs, we show that covalently bound boundaries in 2D MoS2 tend to be decorated by nanopores...
January 10, 2017: Nanoscale
https://www.readbyqxmd.com/read/28068987/effects-of-acetyl-dl-leucine-on-cerebellar-ataxia-alcat-trial-study-protocol-for-a-multicenter-multinational-randomized-double-blind-placebo-controlled-crossover-phase-iii-trial
#8
Katharina Feil, Christine Adrion, Julian Teufel, Sylvia Bösch, Jens Claassen, Ilaria Giordano, Holger Hengel, Heike Jacobi, Thomas Klockgether, Thomas Klopstock, Wolfgang Nachbauer, Ludger Schöls, Claudia Stendel, Ellen Uslar, Bart van de Warrenburg, Ingrid Berger, Ivonne Naumann, Otmar Bayer, Hans-Helge Müller, Ulrich Mansmann, Michael Strupp
BACKGROUND: Cerebellar ataxia (CA) is a frequent and often disabling condition that impairs motor functioning and impacts on quality of life (QoL). No medication has yet been proven effective for the symptomatic or even causative treatment of hereditary or non-hereditary, non-acquired CA. So far, the only treatment recommendation is physiotherapy. Therefore, new therapeutic options are needed. Based on three observational studies, the primary objective of the acetyl-DL-leucine on ataxia (ALCAT) trial is to examine the efficacy and tolerability of a symptomatic therapy with acetyl-DL-leucine compared to placebo on motor function measured by the Scale for the Assessment and Rating of Ataxia (SARA) in patients with CA...
January 10, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28065609/sexually-dimorphic-differentiation-of-a-c-%C3%A2-elegans-hub-neuron-is-cell-autonomously-controlled-by-a-conserved-transcription-factor
#9
Esther Serrano-Saiz, Meital Oren-Suissa, Emily A Bayer, Oliver Hobert
Functional and anatomical sexual dimorphisms in the brain are either the result of cells that are generated only in one sex or a manifestation of sex-specific differentiation of neurons present in both sexes. The PHC neuron pair of the nematode C. elegans differentiates in a strikingly sex-specific manner. In hermaphrodites the PHC neurons display a canonical pattern of synaptic connectivity similar to that of other sensory neurons, but in males PHC differentiates into a densely connected hub sensory neuron/interneuron, integrating a large number of male-specific synaptic inputs and conveying them to both male-specific and sex-shared circuitry...
January 2, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28055983/matching-the-reaction-diffusion-simulation-to-dynamic-18-f-fmiso-pet-measurements-in-tumors-extension-to-a-flow-limited-oxygen-dependent-model
#10
Kuangyu Shi, Christine Bayer, Florian C Gaertner, Sabrina T Astner, Jan J Wilkens, Fridtjof Nüsslin, Peter Vaupel, Sibylle I Ziegler
Positron-emission tomography (PET) with hypoxia specific tracers provides a noninvasive method to assess the tumor oxygenation status. Reaction-diffusion models have advantages in revealing the quantitative relation between in vivo imaging and the tumor microenvironment. However, there is no quantitative comparison of the simulation results with the real PET measurements yet. The lack of experimental support hampers further applications of computational simulation models. This study aims to compare the simulation results with a preclinical [(18)F]FMISO PET study and to optimize the reaction-diffusion model accordingly...
January 5, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28048685/tu-d-201-08-experience-complying-with-the-joint-commission-element-of-performance-on-radiation-dose-index-monitoring
#11
M P Supanich
PURPOSE: A new Joint Commission element of performance effective July 2015 requires incidents where the radiation dose index exceeds a defined level be reviewed, analyzed and compared to external benchmarks. This work offers a comprehensive review of the CT exams in which the notification level was exceeded and the reason at one academic medical center. This review may help other institutions set reference levels at clinically relevant values. METHODS: Radiation Dose Structured Reports from each of the 5 diagnostic CT scanners at our institution are automatically sent to our radiation dose index monitoring software platform, Radimetrics from Bayer Healthcare...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048652/tu-d-brb-00-dual-energy-ct-in-radiation-therapy
#12
Zacariah Labby
: Dual-energy CT technology is becoming increasingly available to the medical imaging community. In addition, several models of CT simulators sold for use in radiation therapy departments now feature dual-energy technology. The images provided by dual-energy CT scanners add new information to the radiation treatment planning process; multiple spectral components can be used to separate and identify material composition as well as generate virtual monoenergetic images. In turn, this information could be used to investigate pathologic processes, separate the properties of contrast agents from soft tissues, assess tissue response to therapy, and other applications of therapeutic interest...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047985/tu-d-brb-01-dual-energy-ct-techniques-in-acquisition-and-image-processing
#13
N Pelc
: Dual-energy CT technology is becoming increasingly available to the medical imaging community. In addition, several models of CT simulators sold for use in radiation therapy departments now feature dual-energy technology. The images provided by dual-energy CT scanners add new information to the radiation treatment planning process; multiple spectral components can be used to separate and identify material composition as well as generate virtual monoenergetic images. In turn, this information could be used to investigate pathologic processes, separate the properties of contrast agents from soft tissues, assess tissue response to therapy, and other applications of therapeutic interest...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047316/tu-d-brb-02-dual-energy-ct-applications-in-oncologic-imaging
#14
U Schoepf
: Dual-energy CT technology is becoming increasingly available to the medical imaging community. In addition, several models of CT simulators sold for use in radiation therapy departments now feature dual-energy technology. The images provided by dual-energy CT scanners add new information to the radiation treatment planning process; multiple spectral components can be used to separate and identify material composition as well as generate virtual monoenergetic images. In turn, this information could be used to investigate pathologic processes, separate the properties of contrast agents from soft tissues, assess tissue response to therapy, and other applications of therapeutic interest...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046646/tu-d-brb-03-dual-energy-ct-considerations-in-radiation-therapy
#15
C Coolens
: Dual-energy CT technology is becoming increasingly available to the medical imaging community. In addition, several models of CT simulators sold for use in radiation therapy departments now feature dual-energy technology. The images provided by dual-energy CT scanners add new information to the radiation treatment planning process; multiple spectral components can be used to separate and identify material composition as well as generate virtual monoenergetic images. In turn, this information could be used to investigate pathologic processes, separate the properties of contrast agents from soft tissues, assess tissue response to therapy, and other applications of therapeutic interest...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046338/th-ab-207a-04-assessment-of-patients-cumulative-effective-dose-from-ct-examinations
#16
M Bostani, C Cagnon, A Sepahdari, K Beckett, T Oshiro, M McNitt-Gray
PURPOSE: The Joint Commission requires institutions to consider patient's age and recent imaging exams when deciding on the most appropriate type of imaging exam. Additionally, knowing patient's imaging history can help prevent duplicate scans. Radiation dose management software affords new opportunities to identify and utilize patients with high cumulative doses as one proxy for subsequent review of imaging history and opportunities in avoiding redundant exams. METHODS: Using dose management software (Radimetrics, Bayer Healthcare) a total of 72073 CT examinations performed from Jan 2015 to Jan 2016 were examined to categorize patients with a cumulative effective dose of 100 mSv and above...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28031455/independent-effects-of-motivation-and-spatial-attention-in-the-human-visual-cortex
#17
Mareike Bayer, Valentina Rossi, Naomi Vanlessen, Annika Grass, Annekathrin Schacht, Gilles Pourtois
Motivation and attention constitute major determinants of human perception and action. Nonetheless, it remains a matter of debate whether motivation effects on the visual cortex depend on the spatial attention system, or rely on independent pathways. This study investigated the impact of motivation and spatial attention on the activity of the human primary and extrastriate visual cortex by employing a factorial manipulation of the two factors in a cued pattern discrimination task. During stimulus presentation, we recorded event-related potentials and pupillary responses...
December 28, 2016: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28027856/the-culture-of-hospitality
#18
Nick Bayer, Elliot K Fishman, Karen M Horton, Pamela T Johnson
No abstract text is available yet for this article.
December 24, 2016: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28027261/evidence-based-medicine-the-evaluation-and-treatment-of-pressure-injuries
#19
Joseph A Ricci, Lauren R Bayer, Dennis P Orgill
LEARNING OBJECTIVE: After studying this article, the participant should be able to: 1. Discuss the approach to and rationale for pressure injury management, including specific techniques for prevention and preoperative evaluation. 2. Develop a management algorithm for these wounds that includes operative and nonoperative modalities. 3. Understand how to identify and manage the complications of surgical intervention for pressure injuries, including recurrence. SUMMARY: Pressure injuries are a common problem associated with great morbidity and cost, often presenting as complex challenges for plastic surgeons...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28025931/a-review-of-clinical-trial-endpoints-of-patients-with-pulmonary-arterial-hypertension-and-chronic-thromboembolic-pulmonary-hypertension-and-how-they-relate-to-patient-outcomes-in-the-united-states
#20
Christine Divers, David Platt, Edward Wang, Jay Lin, Melissa Lingohr-Smith, Stephen C Mathai
: Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) are subgroups of pulmonary hypertension and are considered rare diseases. Understanding how endpoints of clinical trials (and patient registry studies) of patients with PAH and CTEPH are associated with patient outcomes is important in order to address the concerns of patients, health care providers, decision makers, and payers. The purpose of this review was to examine how endpoints used in clinical trials and patient registry studies are associated with outcomes of patients with PAH and CTEPH...
January 2017: Journal of Managed Care & Specialty Pharmacy
keyword
keyword
87650
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"